does anyone here have any experience generating power and remaining on the grid? i heard the power company is required to purchase any excess. i thought about tapping into the stream next to my home and generating hydropower but i will remain on the grid. i thought of finding a generator that needs a motor and hooking it up to a turbine. my original thought was to utilize the power in special areas like heating or cooling as it seems i do one or the other constantly. if i hook it into the house current via an inverter, will i have alot of power spikes etc. ? has anyone done anything similar?